80210140 has 12 divisors (see below), whose sum is σ = 168441336. Its totient is φ = 32084048.

The previous prime is 80210111. The next prime is 80210167. The reversal of 80210140 is 4101208.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2005234 + ... + 2005273.

It is an arithmetic number, because the mean of its divisors is an integer number (14036778).

Almost surely, 2^80210140 is an apocalyptic number.

It is an amenable number.

80210140 is an abundant number, since it is smaller than the sum of its proper divisors (88231196).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80210140 is a wasteful number, since it uses less digits than its factorization.

80210140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4010516 (or 4010514 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 80210140 is about 8956.0113890057. The cubic root of 80210140 is about 431.2638855712.

Adding to 80210140 its reverse (4101208), we get a palindrome (84311348).

The spelling of 80210140 in words is "eighty million, two hundred ten thousand, one hundred forty".